I haven't been down-voting, nor have I received any notification of a down-vote or user removed. But somehow over the last week I've lost about 20 rep. And I've done nothing. What's happening?
I don't know how your reputation tab looks to you, since you don't have the privilege of viewing deleted posts, but it looks like you earned several +2 rep points for suggesting edits to posts which were later deleted. You may or may not be able to see these examples: for instance, for instance, for instance.
Most reputation changes associated with a post are un-done if that post is deleted. Nothing wrong on your end --- thanks for working to make the site more readable.